Children (15 direct children, 2585 direct and indirect children):
Pectinariidae
(tree size 93)
Cirratulidae
(tree size 458)
Ampharetidae
(tree size 501)
Acrocirridae
(tree size 60)
Terebellidae
(tree size 883)
Trichobranchidae
(tree size 127)
Flabelligeridae
(tree size 312)
Alvinellidae
(tree size 17)
Ctenodrilidae
(tree size 24)
Fauveliopsidae
(tree size 37)
Cirratuliformia
Sternaspidae
(tree size 56)
Terebellomorpha
Poeobiidae
(tree size 2)
Flotidae